Atlas N 40005113 DCC Sound Canadian Pacific CP Rail #4406 FB-1 Diesel Locomotive August 16, 2026 By 0 At the height of cab units, this was ALCOs foray into the market. Over 600 were built from 1946 to 1956 with 400 of them being FA units. DCC equipped. Dual mode DC and DCC operation. Supports all DCC programming modes.